The answer is : to
No, "get" is a verb. It can be used as a noun in some cases, but it is not a preposition.
'From' can be either a preposition or an adverb, but it is not used as a verb or noun.
No, it is not a preposition. The word do is a noun or verb or helper verb.
No. Undo is a verb. It cannot be used as a preposition.
No. Would be is a conditional mood of the verb "to be" (as is will be/can be/could be). It is not a preposition.
No, "get" is a verb. It can be used as a noun in some cases, but it is not a preposition.
'From' can be either a preposition or an adverb, but it is not used as a verb or noun.
No, it is not a preposition. The word do is a noun or verb or helper verb.
No. Undo is a verb. It cannot be used as a preposition.
No. Would be is a conditional mood of the verb "to be" (as is will be/can be/could be). It is not a preposition.
No. Suffer is a verb. It cannot be used as a preposition.
No, it is not a preposition. The word isolated is a past tense verb that can also be used as an adjective.
No, it is not a preposition. It is a verb (to have: to possess or exhibit) It is an auxiliary verb for the "perfect" tenses (have, has, had, will have).
The word "is" is a verb, a conjugation of the verb "to be."
No, the word "forget" is not a preposition. It is a verb used to describe the action of not remembering something.
No, it is not a preposition. Agree is a verb.
No, it is not. It is a verb (to possess) or a helper verb in the perfect tenses.